Vacuum



FIG. 1 is a perspective view of a vacuum showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a perspective view of a second embodiment thereof;

FIG. 7 is a front elevational view of FIG. 6;

FIG. 8 is a rear elevational view of FIG. 6;

FIG. 9 is a right side elevational view of FIG. 6; and,

FIG. 10 is a top plan view of FIG. 6.

The broken lines seen in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a vacuum, as shown and described. 